AirTest TR-5200 Manual de operação e manutenção - Página 2

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CALIBRATION
(Con't)
NOTE: The system voltage, measured between point A
(positive), is factory set. Do not change this voltage value.
(RED)
The sensor voltage, measured between point A
(positive), is factory set and the value is sensor type dependent. Do
(YELLOW)
not change this voltage value. Damage to the sensor will result if the voltage
is set too high. For the TR-5200 this is 4.25 volts. For the TR5500 it is 3.50
volts.
A1
-
+
CONTROLLER
THE SIX TEST POINTS
ON THE LEL BOARD
ARE AS FOLLOWS:
A - GROUND
BLACK
C - ZERO TEST POINT
YELLOW
D - SPAN TEST POINT
WHITE
E - 4-20mA TO VOLTS
RED
B- SENSOR VOLTAGE
F - SYSTEM 10 VDC +/- 0.5V
Fig. 1
[
% CONCENTRATION OF CALIBRATION GAS
V =
100 % (MAXIMUM RANGE)
(negative) & point F
(BLACK)
(negative) & point B
(BLACK)
INPUT
E
+ -
A1
A
VR4
CURRENT
F
SENSOR V
C
D
ZERO SPAN
VR1
SEN
VR2 VR3
+ -
SIG
B
SENSOR
]
X 1.6 + 0.4
2
LAYOUT – TR5200
4.80
4.00
MODEL TR-5200
COMBUSTIBLE
GAS
DETECTOR
2.40
4.00
6.60
AirTest Technologies Inc
TR-5200 LAYOUT
Drawn By
Drawing No.
dcm
TR5200WLayout.tcw
3
Rev